Steam-boiler-flue cleaner



(N0 Mode l.)

J. OOGKER.

STEAM BOILER FLUE CLEANER. No. 309,377. Patented Dec. 16, 1884.

itnesses. Iventor.

. 04M @)cr 3 M f nirn Parent STEAM- -BOILER- -FLUE CLEANER.

SPECIFICATION forming part of Letters Patent No. 309,377, dated December16, 1884,

Application filed May 12, 1884. (No model.)

To all whom it may concern.-

Be it known that I, JAMES COOKER, a citizen of the United States,residing in Buffalo, in the county of Erie and State of New York, haveinvented certain new and useful. Improvements in Steam-Boiler-FlueCleaners, of which the following is a specification.

The object of this invention is to produce a simple and effective devicefor cleaning boilertubes by means of a jet of steam, which will be fullyand clearly hereinafter shown and described by reference to theaccompanying drawings, in which Figure 1 is a side elevation, partly insec tion, of the device complete, and Fig. 2 represents a top view.

The invention consists of a tube, or, provided with a head, to, having asquare or hexagonal nut, a. The lower portion of the tube a is connectedin the usual way with an elbow, (L to which is secured the tube to",having a piece of rubber or other flexible tube, a for connecting in anywell-known way with a steamboiler. Just below the tapering head a of thetube a is one or more outlet-openings, c.

c is a flaring case adapted to slide back and forth along the tube a. Itis provided with an inwardlytapering head, 0, constructed to fit thetapering head of the tube a, so as to form a valve, as shown.

At the lower end of the case 0 is a flaring rim, c and below it isaflaring collar, 0, (also adapted to slide along the tube a.) Re low thiscollar 0 is a spiral spring, 0 and below the spring is a nut, e, and ajam-nut, 6, both being arranged to screw back and forth on the tube a.Their object is to increase or diminish the force of the spring and tokeep it in place.

I have shown a coupling, 6*, to be used when the tube ais made in twopieces; but this may be used or not, as may be desired.

The head or case 0 is provided with a flange, e.

The object in making 0' tapering or cone- 5 shaped is to adapt it to beused in flues of different sizes. M

0* represents a wooden handle by which the device is held while beingused.

The operation of the invention is as follows: The tube a beingsuificient-ly long to enable the (iperator to move about the requireddistance and connect it with the steanrboiler in the usual way, theoperator places the head or case a into a flue and pushes forward withsufficient force to overcome the spring and bring it toward the positionshown by the dotted lines This operation brings the opening 0 out beyondthe tapering portion 0 and allows the steam to pass into the flue andclean it. A close joint is produced between the tube a and the lowerportion of the case 0 by means of a packing,f, of cotton or otherwell-known material.

I claim as my invention A boiler-flue cleaner consisting of a tubularportion provided with a suitable handle, a tapering head, a, andopenings 0, in combination with a sliding case, 0, provided with avalve'seat, 0 a stuffing-box for keeping a 7:) tight joint, a spring andconnections for holding the parts in position, and a suitable tube forconnecting it with the boiler, as and for the purposes described.

JAMES COOKER.

Witnesses:

J. M. CALDWELL, JAMES Siinesrnn.

